﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
using System.Web.Security;
using Host.Models;

namespace Host.Controllers
{
    public class JSONData
    {
        public string UserName { get; set; }
        public string Email { get; set; }
        
    }
    public class Role
    {
        public string Roles { get; set; }
    }

    public class UserGroup
    {
        public string UserName { get; set; }

        public string Email { get; set; }

        public string Role { get; set; }

        public string OldRole { get; set; }
    }

    public class AccountController : Controller
    {

        public ActionResult UserAdmin()
        {
            return View();
        }

        public ActionResult UserGroup()
        {
            return View();
        }


        public ActionResult FundUser()
        {
            return View();
        }

        //
        // GET: /Account/LogOn

        public ActionResult LogOn()
        {
            return View();
        }


        public JsonResult GetUsers()
        {
            var result = new JsonResult();
            MembershipUserCollection users = Membership.GetAllUsers();
            List<RegisterModel> data = (from MembershipUser user in users
                                                    select new RegisterModel
                                                   {
                                                       UserName = user.UserName, Email = user.Email
                                                   }).ToList();
            result.Data = data ;
            return Json(data, JsonRequestBehavior.AllowGet);
        }

        [HttpPost]
        public ActionResult RemoveUser(JSONData user)
        {
            Membership.DeleteUser(user.UserName);
            return null;
        }

        [HttpPost]
        public ActionResult AssignUserToGroup(UserGroup userGroup)
        {
            Roles.RemoveUserFromRole(userGroup.UserName, userGroup.OldRole);
            Roles.AddUserToRole(userGroup.UserName, userGroup.Role);
            return null;
        }

        [HttpPost]
        public ActionResult CreateRole(List<Role> roleName)
        {
           Roles.CreateRole(roleName[0].Roles);
            return null;
        }

        public JsonResult GetUserGroups()
        {
            var json = new JsonResult();
            MembershipUserCollection users = Membership.GetAllUsers();
            List<UserGroup> data = (from MembershipUser user in users
                                        select new UserGroup
                                        {
                                            UserName = user.UserName,
                                            Email = user.Email
                                        }).ToList();
            foreach (var userGroup in data)
            {
                userGroup.Role = Roles.GetRolesForUser(userGroup.UserName).FirstOrDefault();
            }
            return Json(data, JsonRequestBehavior.AllowGet);
            //return data;
        }

        [HttpPost]
        public ActionResult UserAdmin(List<JSONData> data)
        {
            MembershipUserCollection users = Membership.GetAllUsers();
            List<RegisterModel> ou = (from MembershipUser user in users
                                        select new RegisterModel
                                                   {
                                                       UserName = user.UserName, Email = user.Email
                                                   }).ToList();
            List<RegisterModel> nu = (from JSONData i in data select new RegisterModel
                                                                         {
                                                                             UserName = i.UserName,
                                                                             Email = i.Email
                                                                         }).ToList();
            var res = nu.Except(ou);

            foreach (var registerModel in ou)
            {
                foreach (var model in res)
                {
                    if (model == registerModel)
                    {
                        Membership.DeleteUser(model.UserName);
                    }
                }
            }
            
            
            return null;
        }

        public Action Save(object data)
        {
            return null;
        }

        //
        // POST: /Account/LogOn

        [HttpPost]
        public ActionResult LogOn(LogOnModel model, string returnUrl)
        {
            if (ModelState.IsValid)
            {
                if (Membership.ValidateUser(model.UserName, model.Password))
                {
                    #region Check Session Object
                    if (Session["User"] == null)
                        Session["User"] = "";
                    #endregion

                    #region Set Session Object
                    Session["User"] = Membership.GetUser(model.UserName);
                    #endregion
                    
                    FormsAuthentication.SetAuthCookie(model.UserName, model.RememberMe);
                    if (Url.IsLocalUrl(returnUrl) && returnUrl.Length > 1 && returnUrl.StartsWith("/")
                        && !returnUrl.StartsWith("//") && !returnUrl.StartsWith("/\\"))
                    {
                        return Redirect(returnUrl);
                    }
                    else
                    {
                        return RedirectToAction("Index", "Home");
                    }
                }
                else
                {
                    ModelState.AddModelError("", "The user name or password provided is incorrect.");
                }
            }

            // If we got this far, something failed, redisplay form
            return View(model);
        }

        //
        // GET: /Account/LogOff

        public ActionResult LogOff()
        {
            FormsAuthentication.SignOut();

            return RedirectToAction("Index", "Home");
        }

        //
        // GET: /Account/Register
        
        public ActionResult Register()
        {
            string[] roles = Roles.GetRolesForUser(User.Identity.Name);
            string[] allRoles = Roles.GetAllRoles();

            var model = new RegisterModel
                            {
                                Roles = roles,
                                UserRoles = allRoles
                            };
            ViewData["roles"] = allRoles;
            return View(model);
        }

        //
        // POST: /Account/Register

        [HttpPost]
        public ActionResult Register(RegisterModel model)
        {
            if (ModelState.IsValid)
            {
                // Attempt to register the user
                MembershipCreateStatus createStatus;
                Membership.CreateUser(model.UserName, model.Password, model.Email, null, null, true, null, out createStatus);

                foreach (string role in model.UserRoles)
                {
                    Roles.AddUserToRole(model.UserName, role);
                }


                if (createStatus == MembershipCreateStatus.Success)
                {
                    FormsAuthentication.SetAuthCookie(model.UserName, false /* createPersistentCookie */);
                    return RedirectToAction("Index", "Home");
                }
                else
                {
                    ModelState.AddModelError("", ErrorCodeToString(createStatus));
                }
            }

            // If we got this far, something failed, redisplay form
            return View(model);
        }

        //
        // GET: /Account/ChangePassword

        [Authorize]
        public ActionResult ChangePassword()
        {
            return View();
        }

        //
        // POST: /Account/ChangePassword

        [Authorize]
        [HttpPost]
        public ActionResult ChangePassword(ChangePasswordModel model)
        {
            if (ModelState.IsValid)
            {

                // ChangePassword will throw an exception rather
                // than return false in certain failure scenarios.
                bool changePasswordSucceeded;
                try
                {
                    MembershipUser currentUser = Membership.GetUser(User.Identity.Name, true /* userIsOnline */);
                    changePasswordSucceeded = currentUser.ChangePassword(model.OldPassword, model.NewPassword);
                }
                catch (System.Exception)
                {
                    changePasswordSucceeded = false;
                }

                if (changePasswordSucceeded)
                {
                    return RedirectToAction("ChangePasswordSuccess");
                }
                else
                {
                    ModelState.AddModelError("", "The current password is incorrect or the new password is invalid.");
                }
            }

            // If we got this far, something failed, redisplay form
            return View(model);
        }

        //
        // GET: /Account/ChangePasswordSuccess

        public ActionResult ChangePasswordSuccess()
        {
            return View();
        }

        #region Status Codes
        private static string ErrorCodeToString(MembershipCreateStatus createStatus)
        {
            // See http://go.microsoft.com/fwlink/?LinkID=177550 for
            // a full list of status codes.
            switch (createStatus)
            {
                case MembershipCreateStatus.DuplicateUserName:
                    return "User name already exists. Please enter a different user name.";

                case MembershipCreateStatus.DuplicateEmail:
                    return "A user name for that e-mail address already exists. Please enter a different e-mail address.";

                case MembershipCreateStatus.InvalidPassword:
                    return "The password provided is invalid. Please enter a valid password value.";

                case MembershipCreateStatus.InvalidEmail:
                    return "The e-mail address provided is invalid. Please check the value and try again.";

                case MembershipCreateStatus.InvalidAnswer:
                    return "The password retrieval answer provided is invalid. Please check the value and try again.";

                case MembershipCreateStatus.InvalidQuestion:
                    return "The password retrieval question provided is invalid. Please check the value and try again.";

                case MembershipCreateStatus.InvalidUserName:
                    return "The user name provided is invalid. Please check the value and try again.";

                case MembershipCreateStatus.ProviderError:
                    return "The authentication provider returned an error. Please verify your entry and try again. If the problem persists, please contact your system administrator.";

                case MembershipCreateStatus.UserRejected:
                    return "The user creation request has been canceled. Please verify your entry and try again. If the problem persists, please contact your system administrator.";

                default:
                    return "An unknown error occurred. Please verify your entry and try again. If the problem persists, please contact your system administrator.";
            }
        }
        #endregion
    }
}
